UPDATE: Latest NS statement added. UK ISP Fast24 has, for reasons that aren't completely clear, been cut-off by supplier NetServices (NS). NS has since issued the following rather vague statement:

FAST24 INFORMATION - 17 MAY 2006

For reasons beyond NetServices' control, it is with regret that NetServices have had to suspend the supply of services to Fast24, and therefore Fast24's customers. If you are one of the customers affected, NetServices will be able to assist you with any enquiries you may have, including how to continue to receive service.

In this regard, you should contact NetServices on 0161 386 5800 or if you have e-mail access - on F24@netservicesplc.com.

NetServices would like to apologise for any inconvenience caused by the disruption in service.

Similar reports from The Register note that Ofcom is aware of the situation and that both sides are refusing to comment.

Interestingly customers having problems with their broadband ADSL access have phoned Fast24 only to be told that it’s merely a problem with their 'Radius' (authentication) server. Not the most truthful of answers.

As if to confuse things further, such users have been asked to use a new username: "username-e7even@bbuk". Having BBUK and E7even in the name may not be seen as much of an improvement.

Sources have hinted to us that there may be a payment dispute between NS and Fast24, although it's unclear which side is more to blame. Customers can find additional information in our Fast24 forum.

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New Statement from NS:
NetServices operate in the wholesale market and as such offer services only to ISPs and resellers, not to consumers (end user customers). NetServices do not intend to change this business model.

NetServices do not 'own' the customers (their contacts are with the reseller in question) and therefore never directly provide MAC codes to end user customers. Requests must come via our resellers.

NetServices are providing temporary alternative arrangements to Fast24 customers so they continue to receive service whilst the issue with Fast24 is addressed.